Brugge



(No Model.)

A. O. NAGEL, R. H. KAEMP & A. W. F. G. LINNE'NBRUGGE. DUST COLLECTOR.No. 361,711. -Patented Apr. 26, 1887.

N. PETERS. PhnmLillm ru lwr. Washington. 0:6.

UNTTED STATES PATENT OFFICE.

AUGUST CHRISTIAN NAGEL, REINHOLD HERMANN KAEMP, AND ADOLF \VILHELM FRANZGEORG LINNENBRUGGE, OF HAMBURG, GERMANY, ASSIGNORS TO NAGEL & KAEMP, OFSAME PLACE.

DUST-COLLECTOR.-

SPBCIPICATION forming part of Letters Patent No. 361,711, dated April26, 1887.

Application filed August 31. 1886. Serial No. 212.284.

T0 at whom it may concern:

Be it known that we, AUGUST CHRISTIAN NAGEL and BEINHoLD HERMANN, KAEMP,both citizens of the free state of Hamburg, and ADOLF WILHELM FRANZGEORG LINNEN- BRiiGGE, a subject of the King of Prussia, all threeresiding in the city of Hamburg,German Empire, have invented new anduseful Improvements in Dust-Collectors, (for which we have received apatent in Italy, No. 157,Vol. XXXIX, dated April 7, 1886,) of which thefollowing is a specification.

Our invention relates to dust-collectors operating by means of a currentof air produced by suction, and in which the filtering-surfaces arecleaned by a back-draft; and theimprovements consist in the particularmeans employed for creating the said back-draft and for shaking thefiltering-surfaces.

On the annexed sheet of drawings, Figure 1 represents, in sectionalelevation, a dust-collector constructed according to our invention. Fig.2 is a side View thereof; Fig. 3,.a horizontal section on line a a, Fig.1; and Fig. 4,a top view, with a portion in section, according to line b1). Figs. 5, 6, and 7 represent details to a larger scale.

The apparatus consists of a chest divided by the horizontalpartition-wall 2 into the horizontal wall of the compartment 4, so as tobe in permanent communication with the outer air. From the said cylinderbranches off a hollow arm, 10, having at its lower side an openingadapted to register with one or more cells, the edges of the saidopening, which are flanged, being in sliding contact with thepartition-wall 2. By means of this arm and the (No model.) Patented inItaly April 7, 1886, No. XXXIX, 157.

cylinder 9 a communication is established between the outer air and thecells, with which the arm registers at the time. The upper rim of thecylinder 9 is provided on its periphery with teeth, with which engages apawl, 19, Fig. 4-, pivoted to a bevel-wheel, 18, that is driven by apinion, 17 shaft 15, and pulley 16. The rotation of the said pulley willthus produce a slow intermittent rotation of the cylinder 9 with its arm10. Moreover, these parts are so arranged in respect to each other that,if the inside width of the arm corresponds to that of a single cell, thearm during its time of repose between two strokes of the pawl'19 willregister exactly with one of the cells, and that at every stroke of thepawl it will be pushed over the following cell. If the arm has a widthcorresponding to two cells, it may at every impulsion be advanced by oneor by two cells, as may be preferred, and thus the like for three ormore cells.

When the apparatus is in operation and dust-laden air is drawn by theexhauster into the compartment 3, the air alone passes from the latterthrough the filtering-surfaces of all the cells not communicating withthe arm 10 into the said cells, and thence into the compartment 4, andout by the tube 5, while the dust is retained by the said surfaces. Inrespect to the cell or cells 1- being in communication by means of thearm 10 and the cylinder 9 with the outer air, the eXhauster Will, on thecontrary, operate to draw air from the outside of the apparatus throughthe cylinder and its arm into the said cell or cells, and thence throughthe filtering-surfaces of the same into the compartment 3, where itmixes with the air entering at A. An inverted current or back-draft isthus produced in the latter case, with the effect of blowing off theouter side of the filtering-surfaces the dust adhering thereto.According as the arm 10 moves forward,

the cells are in this manner cleaned in succession.

The means for shaking the cells at the same time they are subjected tothe action of the back-draft consists in a hammer arranged to rotatewith the cylinder 9, and operated to strike against the cell or cellswhich are in communication with the arm 10. As is shown in the drawings,the hammer is formed by a bell-crank lever, 11, with hammer-head 12, thesaid lever being pivoted to the bottom of the cylinder 9, and actuatedby a cam, 20, on the shaft 15, through the medium of a yoke, 14, guidingitself on the said shaft, and of a rod, 13, passing centrally throughthe bottom of cylinder-9, and connected by a swiveling joint to the yoke14. I

The dust collecting in the compartment 3 may be discharged from the sameby any suitable meanseas, for instance, by a creeper, 22, which conveysit toward an aperture provided with a self-closing flap-valve, 23,

We claim as our invention 1. In a dust-collector, the combination,withthe chest comprising compartments 3 and 4 and the aperturedpartition-wall 2, said com.- partments communicating, respectively, withthe dust-producing machine and an exhauster, of the filtering-cells 1,arranged in a circle and inserted with their open upper ends intoapertures of the wall 2,\the rotating cylinder 9, communicating with theouter air and having the hollow arm 10, adapted to slide with its loweropen side upon the wall 2 and to register with one or more cells, andmeans for rotating the cylinder 9 and arm 10,substantially as and forthe'purpose described.

2. The combination,with the compartments 3 and 4, partition-wall 2,filtering-cells 1, rotating cylinder 9, and hollow arm 10, arrangedsubstantially as described, of the hammer 11 12, pivoted to the cylinder9, and adapted to strike against the cell or cells communicating withthe atmosphere, and mechanism for actuating the same, as and for thepurpose set forth.

In testimony whereof we have hereunto set our hands in the presence oftwo subscribing witnesses.

AUGUST CHRISTIAN NAGEL.

REINHOLI) HERMANN KAEMP.

ADOLF WILHELM FRANZ GEORG LINNENBRUGGE.

Witnesses:

CHAS. H. BURKE, W. BURKE.

